102 lines
1.9 KiB
Go
102 lines
1.9 KiB
Go
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package main
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import (
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"fmt"
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"strconv"
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"strings"
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)
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type Cube int
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const (
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RED Cube = iota
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BLUE
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GREEN
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)
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type CubeCount struct {
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color Cube
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count uint64
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}
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type Game struct {
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id uint64
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sets [][]CubeCount
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maxRed uint64
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maxBlue uint64
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maxGreen uint64
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}
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func parseColor(color string) Cube {
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if color == "red" {
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return RED
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}
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if color == "green" {
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return GREEN
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}
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return BLUE
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}
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func (g *Game) parseGame(input string) error {
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initialSplit := strings.Split(input, ":")
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setSplit := strings.Split(initialSplit[1], ";")
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idString := initialSplit[0][5:]
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var err error
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g.id, err = strconv.ParseUint(idString, 10, 64)
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if err != nil {
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return err
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}
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for _, set := range setSplit {
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cubes := strings.Split(set, ",")
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var parsedSet []CubeCount
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for _, cube := range cubes {
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var count uint64
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var color string
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fmt.Sscanf(strings.TrimSpace(cube), "%d %s", &count, &color)
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parsedSet = append(parsedSet, CubeCount{parseColor(color), count})
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}
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g.sets = append(g.sets, parsedSet)
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}
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g.maxBlue = 0
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g.maxGreen = 0
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g.maxRed = 0
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return nil
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}
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func (g *Game) resolveGame() {
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for _, set := range g.sets {
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for _, cubeCount := range set {
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if cubeCount.color == RED && cubeCount.count > g.maxRed {
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g.maxRed = cubeCount.count
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} else if cubeCount.color == GREEN && cubeCount.count > g.maxGreen {
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g.maxGreen = cubeCount.count
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} else if cubeCount.color == BLUE && cubeCount.count > g.maxBlue {
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g.maxBlue = cubeCount.count
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}
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}
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}
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}
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func (g *Game) canBePlayed(cubeSet [3]CubeCount) bool {
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for _, cubeCount := range cubeSet {
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if cubeCount.color == RED && cubeCount.count < g.maxRed {
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return false
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}
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if cubeCount.color == GREEN && cubeCount.count < g.maxGreen {
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return false
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}
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if cubeCount.color == BLUE && cubeCount.count < g.maxBlue {
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return false
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}
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}
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return true
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}
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func (g *Game) getGamePower() uint64 {
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return g.maxBlue * g.maxGreen * g.maxRed
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}
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